边界是人造的。
Canalsare human-made channels for water.
运河是指人工开凿的水路。
Substitutions of human-made fibres have been made for natural fibres.
人造纤维代替品已取代了天然纤维。
An environment, natural, or human-made, reflects a compromise between design and habit.
一个环境的，自然的，或人为制造的东西，反映了设计和习惯之间的妥协。
Traditional science is concerned with abstract theories or the nature of the universe— not human-made artifacts.
传统科学关注于抽象的理论及宇宙的本质而不是人造物。
Children as young as three believe human-made objects are owned but naturally occurring things like pinecones are not.
三岁大的小孩相信人造的物品是被拥有的，而天然的物品，例如松果，却不是。
But when the unfamiliar, artificial objects were referred to as "human-made," the younger children tended to classify them as owned.
但当提及到这些不熟悉的人工物品是“人类制造的”时，较年轻的小孩倾向于把它们归类为“被拥有的”。
The GDP reports the total value of human-made goods and services without deductions to reflect losses of capital, especially natural capital.
GDP只计算了人造商品和服务的总价值，却没有减去资产的损失，尤其是自然资产。
The two spacecraft are the most distant human-made objects, out at the edge of the heliosphere — the bubble the sun creates around the solar system.
这两艘飞船是目前距离最遥远的人造物体，远在日光层外缘——由太阳产生的，环绕太阳系的巨型泡状体。
As we predicted from the results of the first experiments, knowers rushed to pilfer the human-made cache if they were paired with another knower.
结果，知情渡鸦要是与另一只也知情的渡鸦在一起，就会急著去偷取人藏起的物事，符合我们根据先前的实验结果所做的预测。
Soon after, people began to experiment with more controversial, human-made additives - first, the anti-malarial medication chloroquine, and later, DEC.
很快，人们开始尝试更多有争议的人工合成物质，首先是防治疟疾的氯喹，然后是DEC。
In one experiment 3-year olds looked at pictures of a fork, teddy bear, truck, and other human-made objects. They also looked at pictures of a leaf, shell, or rock.
在一项实验中，让一些三岁的孩子去看叉子、泰迪熊、卡车和其他一些人造的东西的图片，也让他们看树叶、贝壳和石头的图片。
Faced with traffic noise and other human-made din, city birds have taken matters into their own hands: They adjust their songs in real time to make themselves heard.
面对着城市的交通噪音和喧闹嘈杂，为了让自己的歌声被听到，鸟儿也有自己的看家本领：实时调整歌声。
Dug into characteristically reddish cliffs of the Upper Mustang district, the human-made caves lie at 13, 800 feet (4, 200 meters) above sea level, high above the village of Samdzong
这些人造洞穴，挖掘于上慕坦地区典型的红色峭壁上，位于海平面上13800英尺（4200米），比山宗村还要高。
When experiments are to be made, one cannot rely too much upon the human senses to make an accurate observation.
做实验时，不能过分依靠人类的感官去做精确的观察。
Other inventions—the wheel, agriculture, sliced bread—may have transformed our material existence, but the advent of language is what made us human.
其他发明——如车轮、农耕、切片面包——可能改变了我们的物质生活，但语言的出现才真正塑造了人类。
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